// [The "BSD licence"]
// Copyright (c) 2006-2007 Kay Roepke
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 3. The name of the author may not be used to endorse or promote products
//    derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


#import <Cocoa/Cocoa.h>
#import <ANTLR/ANTLRIntStream.h>
#import <ANTLR/ANTLRTokenStream.h>
#import <ANTLR/ANTLRTreeAdaptor.h>
#import <ANTLR/ANTLRCommonTree.h>
#import <ANTLR/ANTLRCommonTreeAdaptor.h>

@protocol ANTLRTreeNodeStream < ANTLRIntStream > 

- (id) initWithTree:(ANTLRCommonTree *)theTree;
- (id) initWithTree:(ANTLRCommonTree *)theTree treeAdaptor:(ANTLRCommonTreeAdaptor *)theAdaptor;

- (id) LT:(int)k;
- (id) treeSource;
- (id<ANTLRTreeAdaptor>) treeAdaptor;
- (id<ANTLRTokenStream>) tokenStream; 
- (void) setUsesUniqueNavigationNodes:(BOOL)flag;

- (id) nodeAtIndex:(unsigned int) idx;

- (NSString *) stringValue;
- (NSString *) stringValueWithRange:(NSRange) aRange;
- (NSString *) stringValueFromNode:(id)startNode toNode:(id)stopNode;

@end
